CN101680374A - Be used to improve the method and apparatus of the engine brake power of the stroke piston combustion engine of vehicle, particularly diesel engine - Google Patents
Be used to improve the method and apparatus of the engine brake power of the stroke piston combustion engine of vehicle, particularly diesel engine Download PDFInfo
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- CN101680374A CN101680374A CN200880018567A CN200880018567A CN101680374A CN 101680374 A CN101680374 A CN 101680374A CN 200880018567 A CN200880018567 A CN 200880018567A CN 200880018567 A CN200880018567 A CN 200880018567A CN 101680374 A CN101680374 A CN 101680374A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B21/00—Engines characterised by air-storage chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0276—Actuation of an additional valve for a special application, e.g. for decompression, exhaust gas recirculation or cylinder scavenging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
- F02D9/06—Exhaust brakes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Supercharger (AREA)
Abstract
The present invention relates to a kind of stroke piston combustion engine that is used to improve vehicle, the method of the engine brake power of diesel engine (1) particularly, correspondingly comprise that at least one has the cylinder (20) of an intake valve (21) and an exhaust valve (27) at least, one turbo machine (3), one compressor (4), one air compressor (11), at least one storage (10,14), one charge-air pipe (6) and a control gear (16) is characterized in that the following step: will compress by air compressor (11) from the air of charge-air pipe (6) or second suction port (31); To be stored in described at least one storage (10,14) by the air of air compressor (11) compression; Having beat ground will be blown into air (25) is blown in the cylinder (20) and increases compression work, in braking process, to improve engine brake power, the described air that is blown into is stored in described at least one storage (10,14) as pressurized air and/or is directly carried by air compressor (11).The invention still further relates to a kind of device that is used for this.
Description
Technical field
The present invention relates to a kind of method and apparatus that is used to improve the engine brake power of the stroke piston combustion engine of vehicle, particularly diesel engine, correspondingly comprise that at least one has the cylinder of an intake valve and an exhaust valve, a turbo machine, a compressor, an air compressor, at least one storage, a charge-air pipe and a control gear at least.
Background technique
The engine brake power (hereinafter referred to as " braking force ") of diesel engine of turbo charging installation supercharging that such usefulness has turbo machine and a compressor when increasing supercharging level since therefore discharge capacity/the size of engine that can realize reduce become less equally.But in the diesel engine of supercharging, under any circumstance must provide the braking force that suitably increases along with engine power.Therefore, such problem particularly occurs when current " falling size (Down-Sizing) " of motor, and the heavy-duty engine of big discharge capacity is replaced by the specific power with obvious raising, little discharge capacity and lighter motor when this " falls size ".
To this, the generation of at first high braking force thereby be the central issue that when " falling size ", will solve, this braking force should equal the braking force of big motor, so that for example do not make traditional braking system overload or damage common driving comfortability when descent run.
Simultaneously, in servicely return braking force when falling at the load that often occurs and rotating speed and descend and in less motor, also must support travelling normally, and big-block engine can partly remedy with its flywheel moment with the braking force that in cylinder, produces that can provide rapidly.
In the prior art, in order to form high engine braking moment, known so-called exhaust shutter, this exhaust shutter can realize that by more or less fully closing gas exhaust piping the exhaust that increases is flow backwards and therefore better engine brake power when high engine speed.A shortcoming of this simple technology is, the restriction loss of the exhaust that moves back and forth in the main only space by the more or less sealing between piston head and outlet valve of braking force obtains, this is except the income of appropriateness---and maximum available braking force equals the about 50% of engine power, primarily also causes heating exhaust valve and the injection valve that was subjected to high heat load originally unwished-forly.Therefore such system reach significantly better up to surpass the braking force of starting power 100% (! ), this system makes full use of the compression work of motor by this way, i.e. the opening or compressed combustion air being discharged of the short time by scavenging air valve when the end of compression stroke by oneself in check " brake valve " in cylinder head, therefore and this combustion air no longer can play accumulator, and the compression work that this accumulator will be stored in when descent of piston (the working stroke of=motor of having lighted a fire) in the combustion air of inspiration is again exported to piston.
Having become thus is apparent that, thereby the air quantity that enters cylinder when running under braking is that to be used for compression work and also to be used for engine brake power at so effective engine braking system be yardstick.
This effect is strengthened like this, promptly in running under braking or be also referred to as the supercharged engine that promotes the motor in the operation (Schubbetrieb) and particularly do not have boost pressure with ining addition under this running state with relatively poor cylinder charge coefficient work, it is produced by the flow resistance in the gas handling system and the engine speed reinforcement progressively in running under braking by increase.In addition, consider the restriction of igniter pressure just in supercharged engine, compression ratio must reduce (e=21 is to e=16) significantly with respect to self-priming motor, thereby this causes obviously reducing of compression work and braking force equally.
Known in addition, comprise in the vehicle of pneumatic braking equipment having diesel engine, obtain pressurized air by a pressurized air storage that separates for safety reasons and real braking system, wherein supply that is blown into air quantity that should be additional is by an air compressor that strengthens with respect to the standard compressed air braking system or also produce by the supercharging by the unnecessary pressurized air of motor.Should " additive air " in gas handling system that is before or after turbosupercharger, be supplied to motor to quicken better.Known equally, the rising of torque can reach in low-load range thus.And disadvantageously high air requirements, it produces at ground and beat ground each cylinder of supply by additional air is non-.Avoid this shortcoming by the up-to-date gas handling system that the applicant is known, described gas handling system beat is arranged is blown into required additive air demand with the pneumatic device of electronic control and adjusting, and these devices can be integrated into the Motronic control maps device for example in the injection apparatus of electrical adjustment.
Summary of the invention
Therefore the objective of the invention is, improve the engine brake power of the stroke piston combustion engine of this vehicle.
Described purpose realizes by a kind of method and a kind of device with feature of claim 10 with feature of claim 1.
The invention provides a kind of method, wherein have beat ground to be supplied to each cylinder of motor respectively additive air or integrally be supplied to suction tude (Ansaugtrakt) in the deboost phase.
To expand as follows for the system that improves engine power and torque exploitation, promptly, with the combined ground of device that is used for improving torque of identical or similar machinery, pneumatic and electronics, with simple mode by means of the air that beat is arranged be blown in order to cylinder charge running under braking also increase engine brake power and thereby compression work, and also braking force is obviously brought up on the prior art in combination with known venting gas appliance, and therefore in motor supercharging and that discharge capacity reduces thus, eliminated or the described shortcoming of obvious at least minimizing.
Method according to engine brake power of the present invention, as to be used to improve the stroke piston combustion engine of vehicle, particularly diesel engine, wherein correspondingly comprise that at least one has the cylinder of an intake valve and an exhaust valve, a turbo machine, a compressor, an air compressor, at least one storage, a charge-air pipe and a control gear at least, described method is characterised in that the following step:
● will compress by air compressor from the air of the charge-air pipe or second suction port;
● will be stored at least one storage by the air of air compressor compression; And
● have beat ground will be blown into air and be blown into and increase compression work in the cylinder improving engine brake power in braking process, the described air that is blown into is stored in described at least one storage and/or from air compressor as pressurized air and carries.
Advantageously realize with this, the additional amount that is blown into air only with such, be consumed with the corresponding order of magnitude of corresponding braking force of motor.Reach equally whereby to save and be used for the storage area that this is blown into air and affiliated compression horsepower thereof.This method is suitable for having and not having the vehicle of pneumatic braking system.
Particularly advantageously in vehicle be with pneumatic braking system, in method step " storage ", at first compressed air is supplied with first storage and be stored in the there, and when in first storage, under the pressure that one determines, exist one determine air quantity the time, the air that is stored in first storage is deposited in second storage to be stored in second storage via a supply valve.
In a form of implementation of the present invention, supply valve is controlled by control gear, guarantees advantageously that wherein the pneumatic braking system does not suffer losses of compressed air.The check of pressure is possible simultaneously.
In preferably according to embodiments of the present invention, it is step by step following that method step " has being blown into of beat " and has:
● the running state of determining motor and vehicle by control gear by the data and/or the suitable measuring value sensor of engine control computer;
● by a measuring value sensor and/or via pressure and boost pressure in charge-air pipe and the engine speed of pressure regulator detection in described at least one storage, they are corresponding with running under braking, and this information is passed to control gear;
● when intake valve is opened running state with motor and is in braking process,, be blown in the cylinder will be blown into air by being blown into air and being blown into by the controlled control valve that leads to cylinder intake valve of opening of control gear;
● when running under braking finishes, finish to be blown into air being blown in the cylinder.
Special advantage is that braking force according to actual needs beat is arranged is blown into the additional air that is blown in this design proposal.Only when also need to add be blown into air the time, just advantageously be blown into additional air.Therefore reach very big saving.
In another form of implementation, in " being blown into " step by step, be identified for by the controlled time lag of opening described control valve of control gear by the data value that can be scheduled to or store.Realize thus, be blown into air and be superimposed on the charge air flow that in gas-entered passageway, exists, and therefore also can realize the temperature exchange of these gases and therefore also advantageously resist near the overheated of each parts of firing chamber.In addition, advantageously realize at interval by this energy preset time, be blown into one determine be blown in the endurance and this be blown into enough morning ground and finish be not back to gas handling system or the charge-air pipe and cause interference there so that be blown into air from cylinder.
In a particularly preferred design proposal, control gear is regulated the amount that is blown into air according to the corresponding running state of motor and vehicle by pressure regulator.The especially effectively braking force that reaches motor thus improves, because the amount of being blown into is relevant with a plurality of Operational Limitss.For this reason also additionally very advantageously, the braking force of motor as required is adjusted to the amount that is blown into air in the motor by control gear mutually in phase by the table value of the storage that can be scheduled to.
In preferred design proposal, correspondingly the import of air compressor is connected with second suction port or charge-air pipe via a changing valve according to the pressure that in charge-air pipe, exists.Advantageously increase the transmission power of air compressor and avoid using bigger and more expensive air compressor with this.
A kind of device that is used to improve the engine brake power of the stroke piston combustion engine of vehicle, particularly diesel engine, correspondingly comprise that at least one has the cylinder of an intake valve and a brake valve, a turbo machine, a compressor, an air compressor, a storage, a charge-air pipe and a control gear at least, described device is characterised in that, the outlet of this storage via a control valve with the gas-entered passageway of motor or also be connected with suction tude.Can control like this in favourable simple mode by control valve and to be blown into air, promptly only when needing to be blown into air based on operating conditions and be blown into, just open this valve by control gear.
In the vehicle with pneumatic braking system, the import of one second storage is connected via a supply valve with one first storage.Therefore the pneumatic braking system also can be used for being blown into the pressurized air generation of air with its storage and compressed air generator thereof, wherein second storage constitutes special Security for the pneumatic braking system, will be stored in the pressurized air loop that pressurized air wherein is blown into because this second storage forms independent being used for.
In preferred design proposal, the outlet of the control valve and second storage is connected via a pressure regulator, wherein this pressure regulator provides such possibility, promptly can regulate the amount that is blown into air in simple mode via being adjusted in the pressure that is blown into air that flows through this pressure regulator when being blown into.
Advantageously, air is blown into pipeline and is blown into passage via one or is blown into pipeline and be connected with gas-entered passageway, wherein this is blown into passage or is blown into pipeline and makes or be arranged in the gas-entered passageway in the cylinder head of motor because with this for example with pressurized air passages in pressure condition irrespectively realize being blown into targetedly.
In another form of implementation, be blown into passage from exporting to of second storage or to the connecting pipeline that is blown into pipeline, be provided with a heat exchanger.Thereby can advantageously cool off in running under braking via this heat exchanger and to be blown into air and to help to alleviate the heat load of motor in running under braking.
Description of drawings
Set forth the present invention with reference to accompanying drawing by embodiment.Unique here illustrate have under the schematic representation of each parts of motor of each device, comprise an exemplary form of implementation that is used to implement the device of the inventive method according to of the present invention.
The schematic representation of each parts that this illustrates the motor with each device 1 of a unshowned vehicle comprises the device that is used to implement the inventive method according to of the present invention.
Embodiment
Motor 1 can have one or more cylinders, and only example ground illustrates a cylinder 20 of this motor with broken section, comprises a reciprocating piston 18 that is provided with movably therein in the zone in the above.Cylinder 20 thereon side by a cylinder head 28 sealing, its have equally one or more intake valves 21 together with one or more gas-entered passageways 22 and one or more exhaust valve 27 together with one or more exhaust passages and the gas exhaust piping 2 that is connected thereon.Cylinder 20 illustrates above a unshowned bent axle with disconnecting.
Valve 21 and 27 working strokes by motor 1 are opened to downwards in the firing chamber 19 that is arranged between the bottom surface of the end face of reciprocating piston 18 and cylinder head 28 in this example.It constitutes so-called compression stroke, and wherein intake valve 21 and exhaust valve 27 are closed, and reciprocating piston 18 upwards moves away from bent axle along the direction of arrow, therefore to reduce firing chamber 19.The working method of such motor 1, particularly diesel engine is known and no longer sets forth.
One has with the turbo machine 3 of the compressor of its coupling connection gas exhaust piping 24 via this turbo machine 3 and is connected in the extension of gas exhaust piping 2.In the gas exhaust piping 25 after turbo machine 3, the exhaust valve 26 of a common engine brake is installed.Compressor 4 has first suction port 17.The outlet of compressor 4 is connected in the charge-air pipe 6 of cylinder head 28 in this example by pressurized air supply line 34 via charger-air cooler 5.The function of turbo machine 3 and compressor 4 and charger-air cooler 17 is known and no longer sets forth.
In cylinder head 28, schematically illustrate additional, in check " brake valve " 29, this brake valve will be discharged by compressed air in the firing chamber when piston 18 reaches top dead center, preferably in the gas exhaust piping 25 of turbo machine back, and the compression work that therefore produces during compression stage in cylinder is consumed.
Charge-air pipe 6 is here schematically simplified and is illustrated, and it also is connected in first joint of a changing valve 12, and this changing valve is connected in second suction port 31 with second joint.The 3rd joint of changing valve 12 is in the air input joint of an air compressor 11 and is connected, and the exhaust joint of this air compressor is connected in first storage 14 via a drying apparatus 13.
Be shown in control gear 16 control each valve 8,12,15 and pressure regulators 9 among Fig. 1 by one as square frame.This control gear for example is connected via electrical connecting wire with pressure regulator 9 with each valve 8,12,15, and wherein each valve 8,9,12,15 constitutes solenoid valve.
Be respectively each cylinder and connect a regulating mechanism on control gear 16, this regulating mechanism is positioned on the motor 1.Relate to a fuel injection system in this embodiment.The measuring value sensor that is used for temperature, pressure etc. that also can comprise other therein.Control gear 16 comprises a so-called engine control computer or is attached thereto and connects.Control gear 16 obtains the information of necessary running state about motor 1 and vehicle by this engine control computer, for example the temperature of the travelling speed of the rotating speed of motor 1 and load, vehicle and motor 1, air inlet and exhaust etc.
Below the function of each device is described now in more detail to set forth according to method of the present invention.
Dry in known manner and be stored in first storage 10 by drying apparatus 13 by the air of air compressor 11 compression in order in the pneumatic braking system, to use pressurized air.One unshowned connector guide on first storage 10 is stored in pressurized air wherein, is used for using in the same unshowned pneumatic braking system of vehicle.
When pneumatic braking system during by supplied with compressed air fully, this unshowned pressure transducer by control gear 16 is passed on, via supply valve 15 to fill second storage 14 from the pressurized air of first storage 10.Supply valve 15 has the function of safety valve for the pneumatic braking system, so that can not produce its losses of compressed air in such a way.Here, control gear will be compared with the rating value that can be scheduled to and correspondingly will be switched on or switched off supply valve 15 by the value that pressure transducer provides.Supply valve 15 also can independently constitute.
When the running under braking of motor 1, pressurized air is blown in the suction tude that passage 7 is fed to motor 1 via air from second storage 14 and passes through intake valve 21 as being blown into air 36 via the control valve 8 by control gear 16 control.
The pitch time that is blown into beginning and is blown into end that is blown into air 36 from second storage 14 additional is selected like this and can be predetermined by control gear, makes that being blown into air 36 is superimposed on the inlet stream 23 that exists in gas-entered passageway 22.
Be blown into and finish to determine like this can be scheduled to by control gear 16 in other words, promptly along with reaching enough peak value braking force, (eingetaktet) that beat control enters is in case air quantity just reduces and the braking force of the nature of motor just stops this air quantity fully for abrupt deceleration vehicle is enough.
By being blown into air 36 this in the motor 1 being blown into of beat arranged, can be according to the so-called cylinder charge that volume improves the firing chamber 19 of cylinder 20 significantly that is blown into that is blown into air 36.Except control time---for example the known camshaft that does not show via one of motor 1---predetermined pitch time, be blown into the conclusive cross section of pipeline 7 and the pressure in second storage 14 of being blown in addition of volume for what be blown into air 36 by control intake valve 21.
Pressure in second storage 14 or the pressure after pressure regulator 9 constitute a variable parameter and are used to change the amount that is blown into air 36.Implement adjusting to this pressure by control gear 16, for example via the regulated value that can be scheduled to or via data, they are stored among the storage device in the control gear 16 with form.These list datas correspond respectively to the current running state of motor 1 and/or vehicle.Therefore can determine the additional corresponding amount that is blown into air 36 and it is supplied to cylinder 20 for each running state.
Higher cylinder charge advantageously improves the compression work of cylinder 20 and causes the obvious favourable braking force of motor 1 to improve thus now.
By being integrated in the total engine control electronic equipment of engine control computer by control gear 16 control valve 8 and (also optional) pressure regulator 9 with beat control, can make be blown into air 36 amount for example with motor 1 reach/braked speed of making every effort to reach advantageously coordinates mutually, for example by the above-mentioned table value that is stored in the storage device 16.
Therefore guarantee, after a spot of revolution of the bent axle of motor 1, effectively improve the braking force of motor and reduce car speed very effectively with the additional amount that is blown into air 36.
After reaching a car speed that enough reduces, cuts off the additional air 36 that is blown into via control valve 8 immediately by control gear 16, and common installation obvious less engine brake aspect its power for example exhaust valve 26 bear the braking action.
If in the dynamic operation of motor 1, for example rapidly in succession boost phase and in the deboost phase, boost pressure should be dropped on the one hand desirable same can be by under the predetermined yardstick of control gear 16, but or on the other hand for unexpected rapidly should be not enough with the braking force of " nature " of big braking process motor, then in these stages control gear 16 not only in order to quicken but also can alternately to activate the additional supply that is blown into air 36 arbitrarily in order to brake.
Therefore when existence one motor combined characteristic, for example in the table value of the storage device of control gear 16, can by favourable mode be motor 1 and vehicle each arbitrarily running state determine the additional essential amounts that are blown into air 36 and correspondingly it be supplied to motor 1 that this is not only when quickening but also can advantageously improve the power of motor 1 when braking thus by control gear 16.
The present invention is not limited to the above embodiments.
For example can imagine, supply valve 15 constitutes autonomous valve, and it usually is used for pneumatic plant.
Regulating mechanism also can join with the regulating device coupling in the control time that is used for camshaft.
In addition, the present invention may be used on comprising that wherein the form of implementation of motor 1 is not limited to diesel engine on the motor 1 of one or more cylinders 20 with one or more intake valves and exhaust valve 21,27.
Also can imagine, be blown into air 36 before being blown into cylinder 20 through a heat exchanger, so that its temperature can be matched with the corresponding running state of motor 1 best.
In addition, vehicle replaces two storages 10 and 14 can only have second storage 14 under the situation that does not have the pneumatic braking system, can save supply valve 15 simultaneously.
One additional valve 35 can be set in pressurized air supply line 34, and this valve is by control gear 16 controls, so as under the brake running state of determining locking supercharging air supply pipeline 34.
List of numerals
1 engine
2 gas exhaust pipings
3 turbo machines
4 compressors
5 charger-air coolers
6 charge-air pipes
7 air are blown into passage
8 control valves
9 pressure regulators
10 first storages
11 air compressors
12 changing valves
13 drying apparatuss
14 second storages
15 supply valves
16 control gear
17 first suction ports
18 reciprocating pistons
19 firing chambers
20 cylinders
21 intake valves
22 gas-entered passageways
23 inlet stream
Gas exhaust piping before 24 turbo machines
Gas exhaust piping after 25 turbo machines
26 exhaust valves
27 exhaust valves
28 cylinder head
29 brake valves
30 pressure pipings are to compressor
31 second suction ports
32 air pipe lines
33 connecting pipelines
34 pressurized air supply lines
35 valve
36 are blown into air
Claims (17)
1. be used to improve the method for the engine brake power of the stroke piston combustion engine of vehicle, particularly diesel engine (1), correspondingly comprise that at least one has the cylinder (20) of an intake valve (21) and a brake valve (29), a turbo machine (3), a compressor (4), one and at least one storage (10 at least, 14) air compressor of Lian Jieing (11), a charge-air pipe (6) and a control gear (16), it is characterized in that described method has following method step:
(a) will compress by air compressor (11) from the air of charge-air pipe (6) or second suction port (31);
(b) will be stored in described at least one storage (10,14) by the air of air compressor (11) compression; And
(c) having beat ground will be blown into air (36) is blown in the cylinder (20) and increases compression work, in braking process, to improve engine brake power, the described air that is blown into is stored in described at least one storage (10,14) and/or from air compressor (11) as compressed air and carries.
2. in accordance with the method for claim 1, it is characterized in that, in method step (b), at first compressed air is supplied in first storage (10) and be stored in the there, and when in first storage (10), under the pressure that one determines, exist one determine air quantity the time, the air that will be stored in first storage (10) supplies in second storage (14) via a supply valve (15), to be stored in second storage (14).
3. in accordance with the method for claim 2, it is characterized in that described supply valve (15) is controlled by control gear (16).
4. according to one of claim 1 to 3 described method, it is characterized in that method step (c) has step by step following:
(c1) the current running state of determining motor (1) and vehicle by control gear (16) by the data and/or the suitable measuring value sensor of engine control computer;
(c2) survey at pressure in described at least one storage (10,14) and the boost pressure in charge-air pipe (6) by a measuring value sensor and/or via a pressure regulator (9), and this information is passed to control gear (16);
(c3) open and the running state of motor (1) when being in braking process when intake valve (21), by being blown into air (36) and being blown into, be blown in the cylinder (20) will be blown into air (36) by the controlled control valve (8) that leads to the intake valve (21) of cylinder (20) of opening of control gear (16); And
(c4) when having desirable braking force, finish to be blown into air (36) being blown in the cylinder (20).
5. in accordance with the method for claim 4, it is characterized in that, in (c3) step by step, be identified for by the controlled time lag of opening described control valve (8) of control gear (16) by the data value that can be scheduled to or store.
6. according to one of claim 1 to 5 described method, it is characterized in that control gear (16) is regulated the amount that is blown into air (36) according to the corresponding running state of motor (1) and vehicle by pressure regulator (9).
7. according to one of claim 1 to 6 described method, it is characterized in that, regulate the control time of the amount, intake valve (21) and the brake valve (29) that are blown into air (36) according to the running state of motor (1) by control gear (16) by the table value of the storage that can be scheduled to mutually in phase.
8. according to one of claim 1 to 7 described method, it is characterized in that, correspondingly the import of air compressor (11) is connected with second suction port (31) or charge-air pipe (6) via a changing valve (12) according to the pressure that in charge-air pipe (6), exists.
9. according to one of claim 1 to 8 described method, it is characterized in that, in method step (c), there is being beat ground to be blown into air (36) when being blown into by what air compressor (11) was carried as compressed air, close a controlled valve (35) by control gear (16), this valve leads in the pressurized air supply line (34) of charge-air pipe (6) one.
10. be used to improve the device of the engine brake power of the stroke piston combustion engine of vehicle, particularly diesel engine (1), correspondingly comprise that at least one has the cylinder (20) of an intake valve (21) and an exhaust valve (27), a turbo machine (3), a compressor (4), an air compressor (11), at least one storage (10 at least, 14) and a control gear (16), it is characterized in that, the outlet of described at least one storage (10,14) is connected with the gas-entered passageway (22) or the suction tude of motor (1) via a control valve (8).
11., it is characterized in that the import of second storage (14) is connected via a supply valve (15) with first storage (10) according to the described device of claim 10.
12., it is characterized in that described control valve (8) and described at least one storage (10,14) outlet are connected via a pressure regulator (9) according to claim 10 or 11 described devices.
13., it is characterized in that the outlet of described at least one storage (10,14) also is connected via a heat exchanger with gas-entered passageway (22) according to one of claim 10 to 12 described device.
14., it is characterized in that the import of air compressor (11) and control valve (8) also is connected via a controlled connection set according to one of claim 10 to 13 described device.
15., it is characterized in that the pressurized air supply line (34) from compressor (4) to charge-air pipe (6) has a controlled valve (35) according to one of claim 10 to 14 described device.
16., it is characterized in that control valve (8) and valve (35) are arranged in the common housing according to the described device of claim 15.
17. according to one of claim 10 to 16 described device, it is characterized in that, one air is blown into pipeline and is blown into passage (7) or is blown into pipeline via an air that is used to be blown into air (36) and be connected with gas-entered passageway (22), and wherein this is blown into passage (22) or is blown into pipeline and makes or be arranged in the gas-entered passageway (22) in the cylinder head (28) of motor (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007027968A DE102007027968A1 (en) | 2007-06-19 | 2007-06-19 | Method and device for increasing the engine braking power of a reciprocating internal combustion engine of a vehicle, in particular a diesel engine |
| DE102007027968.1 | 2007-06-19 | ||
| PCT/EP2008/004907 WO2008155111A1 (en) | 2007-06-19 | 2008-06-18 | Method and device for increasing the engine brake power of a reciprocating piston internal combustion engine of a vehicle, particularly of a diesel engine |
Publications (2)
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| CN101680374A true CN101680374A (en) | 2010-03-24 |
| CN101680374B CN101680374B (en) | 2012-10-03 |
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|---|---|---|---|
| CN2008800185674A Expired - Fee Related CN101680374B (en) | 2007-06-19 | 2008-06-18 | Method and device for increasing the engine brake power of a reciprocating piston internal combustion engine of a vehicle, particularly of a diesel engine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7946269B2 (en) |
| EP (1) | EP2167799B1 (en) |
| CN (1) | CN101680374B (en) |
| BR (1) | BRPI0813737A2 (en) |
| DE (1) | DE102007027968A1 (en) |
| RU (1) | RU2457349C2 (en) |
| WO (1) | WO2008155111A1 (en) |
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| CN102477928A (en) * | 2010-11-23 | 2012-05-30 | 广西玉柴机器股份有限公司 | Device for recovering compressed air generated by engine braking |
| CN103069126A (en) * | 2010-08-18 | 2013-04-24 | 克诺尔商用车制动系统有限公司 | Method for regulating stable operation of an exhaust-gas turbocharger of an internal combustion engine, and a corresponding apparatus |
| CN103201479A (en) * | 2010-11-03 | 2013-07-10 | 布鲁内尔大学 | Air connector for an internal combustion engine |
| CN105449245A (en) * | 2010-06-16 | 2016-03-30 | 通用汽车环球科技运作有限责任公司 | Usage of regenerative brake power for system restart in start-stop operation of fuel cell hybrid vehicles |
| CN107288769A (en) * | 2017-06-13 | 2017-10-24 | 麦镇荣 | Four stroke echelons do power engine |
| CN108730023A (en) * | 2018-04-19 | 2018-11-02 | 上海尤顺汽车部件有限公司 | A kind of method and apparatus of control engine exhaust air-flow |
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| DE102007061420B4 (en) * | 2007-12-20 | 2009-11-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | A device for generating compressed air for a vehicle and method for operating a device for compressed air generation |
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| EP2841743B1 (en) * | 2012-04-25 | 2016-05-25 | Volvo Lastvagnar AB | Method and engine brake system to control an engine brake of a vehicle |
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| DE102016005877A1 (en) * | 2016-05-13 | 2017-11-16 | Man Truck & Bus Ag | Method for operating an internal combustion engine, in particular as a drive device for a vehicle |
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| RU2135785C1 (en) * | 1998-02-12 | 1999-08-27 | Военный автомобильный институт | Truck combination retarder |
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| AT6338U1 (en) * | 2003-02-20 | 2003-08-25 | Avl List Gmbh | MULTI-CYLINDER INTERNAL COMBUSTION ENGINE WITH INLET AND EXHAUST VALVES |
| US20030178002A1 (en) * | 2003-02-27 | 2003-09-25 | Israel Mark A. | Apparatus and method to operate an engine exhaust brake together with an exhaust gas recirculation system |
| US7050900B2 (en) * | 2004-02-17 | 2006-05-23 | Miller Kenneth C | Dynamically reconfigurable internal combustion engine |
| MX2007010194A (en) | 2004-09-10 | 2008-11-04 | Knorr Bremse Systeme | "torque deficiency" (accumulator-based charge assistance). |
| DE102004047975A1 (en) * | 2004-10-01 | 2006-04-13 | Knorr-Bremse Ag | Method and device for increasing a torque of a reciprocating internal combustion engine, in particular a diesel engine |
| DE112006000194B4 (en) * | 2005-01-17 | 2017-03-23 | Avl List Gmbh | Method and control device for operating an internal combustion engine |
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| AT502997B1 (en) * | 2005-12-20 | 2013-09-15 | Man Truck & Bus Oesterreich Ag | DEVICE FOR INCREASING THE BRAKING PERFORMANCE OF A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE OF A VEHICLE DURING ENGINE BRAKE OPERATION |
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-
2007
- 2007-06-19 DE DE102007027968A patent/DE102007027968A1/en not_active Ceased
-
2008
- 2008-06-18 BR BRPI0813737-4A2A patent/BRPI0813737A2/en not_active IP Right Cessation
- 2008-06-18 RU RU2010101327/06A patent/RU2457349C2/en not_active IP Right Cessation
- 2008-06-18 CN CN2008800185674A patent/CN101680374B/en not_active Expired - Fee Related
- 2008-06-18 WO PCT/EP2008/004907 patent/WO2008155111A1/en active Application Filing
- 2008-06-18 EP EP08773497A patent/EP2167799B1/en not_active Not-in-force
-
2009
- 2009-12-16 US US12/639,400 patent/US7946269B2/en not_active Expired - Fee Related
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| CN107288769A (en) * | 2017-06-13 | 2017-10-24 | 麦镇荣 | Four stroke echelons do power engine |
| CN108730023A (en) * | 2018-04-19 | 2018-11-02 | 上海尤顺汽车部件有限公司 | A kind of method and apparatus of control engine exhaust air-flow |
| CN108730023B (en) * | 2018-04-19 | 2023-02-21 | 上海尤顺汽车技术有限公司 | Method and device for controlling exhaust gas flow of engine |
| CN110242419A (en) * | 2019-06-28 | 2019-09-17 | 一汽解放汽车有限公司 | Control method, device and the engine braking system of engine brake power |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2457349C2 (en) | 2012-07-27 |
| BRPI0813737A2 (en) | 2014-12-30 |
| DE102007027968A1 (en) | 2009-01-02 |
| EP2167799B1 (en) | 2012-08-15 |
| CN101680374B (en) | 2012-10-03 |
| WO2008155111A1 (en) | 2008-12-24 |
| EP2167799A1 (en) | 2010-03-31 |
| RU2010101327A (en) | 2011-07-27 |
| US20100122687A1 (en) | 2010-05-20 |
| US7946269B2 (en) | 2011-05-24 |
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